CHICAGO (CBS) — With higher summer demand and instability in the Middle East, consumers have been paying more at the pump, especially here in Chicago.

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WBBM Newsradio’s Regine Schlesinger reports the insurgent violence in Iraq and threats to oil facilities there have pushed the price of crude oil to more than $107 per barrel.

That has translated to higher gasoline prices, nowhere higher than Chicago.

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“In the lower 48 [states], we have Tucson as the low, $3.37, and Chicago is the high at $4.15 for regular,” Trilby Lundberg, an oil industry analyst.

The latest survey by GasBuddy.com found Chicago area prices ranging from $3.76 to $4.59, with the average at $4.10 per gallon.

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The U.S. average for gas prices was $3.68 per gallon.